|Publication number||US7390208 B1|
|Application number||US 11/724,921|
|Publication date||Jun 24, 2008|
|Filing date||Mar 16, 2007|
|Priority date||Dec 6, 2006|
|Also published as||CN101267071A, US20080139026|
|Publication number||11724921, 724921, US 7390208 B1, US 7390208B1, US-B1-7390208, US7390208 B1, US7390208B1|
|Inventors||James M. Sabo|
|Original Assignee||Hon Hai Precision Ind. Co., Ltd.|
|Export Citation||BiBTeX, EndNote, RefMan|
|Patent Citations (11), Referenced by (7), Classifications (13), Legal Events (4)|
|External Links: USPTO, USPTO Assignment, Espacenet|
This patent application is a continuation-in-part of a U.S. patent application Ser. No. 11/634,490, filed on Dec. 6, 2006, now U.S. Pat. No. 7,338,303 and entitled “CARD CONNECTOR ASSEMBLY HAVING CARRIAGE COMPONENT”, which is invented by the same inventor as this patent application and assigned to the same assignee with this application.
1. Field of the Invention
The present invention relates to a card connector assembly, and particularly to a card connector assembly detachably receiving an electronic card.
2. Description of Related Art
A connector described in U.S. Pat. No. 6,213,804 was issued on Apr. 10, 2001. The connector for receiving a semiconductor comprises a housing defining an insertion slot for insertion of the semiconductor, a plurality of terminals assembled lengthwise along opposite sides of the insertion slot, and a driving mechanism. The driving mechanism comprises a carriage component and a spring mounted below the carriage component for upholding the carriage component and supporting a movement of the carriage component. The terminal comprises a strip-like body portion, a contact portion formed on one end of the body portion for contacting with the semiconductor, and a tail portion formed at the other end of the body portion for soldering onto a circuit board. The contact portions of the terminals are forced to spread outwardly for permitting an insertion of the semiconductor.
A connector described in U.S. Pat. No. 7,014,487 was issued on Mar. 21, 2006. The connector adapted for receiving a circuit board comprises an insulative housing, a slider having an inclined face, two rows of terminals assembled to the slider, and a lever adapted for upwardly moving the slider. Each terminal comprises a contact portion for contacting with the circuit board and an end portion slidable on the inclined face of the slider. When the slider is inserted downwardly into the insulative housing, the end portions of the terminals move downwardly along the inclined face. When the circuit board is pushed downwardly between two rows of the terminals, the contact portions of the terminals come to contact with the printed circuit. The circuit board is therefore fully inserted in the connector. When the slider is actuated upwardly by the lever, the end portions of the terminals climb up the inclined face to space the contact portions away from the circuit board. The circuit board is thereby withdrawn from the connector.
The contact portions of the terminals are forced to spread outwardly for permitting the insertion or the withdrawal of the semiconductor/circuit board. When the semiconductor/circuit board is inserted repeatedly, the connector terminals' conductive plating would experience excessive wear, resulting in unreliable electrical engagement with the inserted semiconductor/circuit board. Further more, such a terminal is nondurable for mating cycles exceeding 250 cycles.
Hence, an improved card connector assembly is required to overcome the above-mentioned disadvantages of the related art.
An object of the present invention is to provide a card connector assembly comprising a durable terminal having a reliable engagement with an electronic card.
To achieve the aforementioned objects, a card connector assembly for insertion of an electronic card comprises an insulative housing defining therein a slot and a plurality of passageways communicating with the slot, and a plurality of terminals retained in the passageways. Each terminal includes a contact portion exposed in the slot for contacting with the electronic card, and a deformable resilient beam having a depressible portion away from the contact portion. The depressible portions are outwardly deflected and cause a rotation of the contact portions toward the electronic card, when electronic card is inserted in. The depressible portions are relaxed inwardly and cause a rotation of the contact portions beyond the electronic card when electronic card is extracted.
The contact portions of the terminals could rotate toward the electronic card, for establishing a reliable engagement between the contact portions and the electronic card. The contact portions could also rotate outwardly for releasing the electronic card, to thereby ease the extraction of the electronic card. The terminals are durable since the contact portions apply a gradually increasing amount of normal force when the electronic card is fully inserted. It is of further benefit that the mating interface of the terminals rotate with respect to the conductive pads of the electronic card. In so doing, the wear area is distributed across a larger portion of the terminal interface. Durability and reliability are thus further improved.
Other objects, advantages and novel features of the invention will become more apparent from the following detailed description of a preferred embodiment when taken in conjunction with the accompanying drawings.
Reference will now be made to the drawing figures to describe the present invention in detail. Referring to
The base portion 12 defines thereon a plurality of channels 121 communicating with corresponding lower passageways 1312 and extending throughout the base portion 12 in a top-to-bottom direction. Each ear portion 14 has a circular receiving hole 141 defined on an upper surface thereof for fixing the coil spring 4.
Each terminal 2 comprises a deformable resilient beam 22 having a depressible portion 221 bended inwardly from a middle portion of the resilient beam 22, a bending portion 24 bended inwardly from an upper end of the resilient beam 22, a contact portion 21 inflecting inwardly from bending portion 24 and having an angled contact end 211, and a soldering portion 23 generally perpendicular to a lower end of the resilient beam 22. Understandably, the depressible portions 221 bended outwardly or formed straight are also applicable, if only they could be depressed outwardly by the carriage component 3.
The carriage component 3 comprises an elongated insertion portion 31 having a pair of angled side faces 311, and a pair of projecting ear portions 32 formed at opposite ends of the insertion portion 31. The projecting ear portion 32 surrounds the ends of a stiffening member 322 which extends the length of the carriage component 3. There is also an engaging hole 321 defined on a lower surface thereof for partially retaining the spring 4.
The electronic card 5 has a plurality of conductive pads 51 formed along a lower edge thereof, and a pair of projections 52 projecting laterally from opposite edges thereof.
The insertion portion 31 of the carriage component 3 is retained within the slot 11 and is moveable between the protrusions 132 and the base portion 12 along a top-to-bottom direction. The protrusions 132 project toward the slot 11 for resisting a disengagement of the insertion portion 31 away from the slot 11. The projecting ear portions 32 of the carriage component 3 are exposed outside of the slot 11 and abut against side surfaces of the periphery walls 13 of the insulative housing 1, with the engaging holes 321 being opposite to corresponding receiving holes 141 of the ear portions 14. The pair of coil springs 4 are assembled between projecting ear portions 32 of the carriage component 3 and the ear portions 14 of the insulative housing 1, with opposite ends thereof respectively retained in the engaging holes 321 and the receiving holes 141.
In operation, once exerting an external force on the electronic card 5, the electronic card 5 is inserted into the slot 11 in a top-to-bottom direction to push the carriage component 3 downwardly. Referring to
When the electronic card 5 is extracted from the electrical connector assembly 100, the carriage component 3 returns backwardly under a restorative force provided by the compressed springs 4. The depressible portions 221 of the contacts 2 stand against the angled side faces 311 and encourage the carriage component 3 together with the electronic card 5 upward. Simultaneously, the depressible portions 221 are relaxed inwardly and cause the contact portions 21 to rotate outwardly around the stepped portions 134 for loosening the electronic card 5, and thereby to ease the return of the carriage component 3 together with the extraction of the electronic card 5.
Optionally, when the carriage component 3 needs to be removed for simplifying the configuration of the card connector assembly 100, the depressible portions 221 of the terminals 2 are disposed at an insertion position of the electronic card 5 for being depressed outwardly by the inserted electronic card 5 directly to then have the regular deformation. During such a process, the springs 4 are compressed between the electronic card 5 and the ear portion 14 of the insulative housing 1. The conductive pads 51 are formed at a proper portion of the electronic card 5 for engaging with the contact ends 211 of the inwardly rotated contact portions 21 of the terminals 2.
However, the disclosure is illustrative only, changes may be made in detail, especially in matter of shape, size, and arrangement of parts within the principles of the invention.
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|Citing Patent||Filing date||Publication date||Applicant||Title|
|US7922495 *||Dec 18, 2008||Apr 12, 2011||Fujitsu Limited||Zero insertion force card edge connector|
|US8641438 *||Feb 23, 2012||Feb 4, 2014||Denso Corporation||Electronic device having card edge connector|
|US8905773 *||Feb 20, 2013||Dec 9, 2014||Nanya Technology Corp.||Memory socket with special contact mechanism|
|US20090258515 *||Dec 18, 2008||Oct 15, 2009||Fujitsu Limited||Connector|
|US20130017702 *||Feb 23, 2012||Jan 17, 2013||Denso Corporation||Electronic device having card edge connector|
|US20140235107 *||Feb 20, 2013||Aug 21, 2014||Nanya Technology Corp.||Memory socket with special contact mechanism|
|US20140357136 *||May 27, 2014||Dec 4, 2014||Tyco Electronics Amp Gmbh||Arrangement for electrical contacting and plug type connection comprising such an arrangement and method for joining such an arrangement to a counter-arrangement|
|U.S. Classification||439/267, 439/260, 439/635|
|Cooperative Classification||H01R12/7082, H01R12/87, H01R12/721, H01R12/714, H01R12/57, H01R12/716|
|European Classification||H01R12/57, H01R23/68B4C, H01R23/68E|
|Mar 16, 2007||AS||Assignment|
Owner name: HON HAI PRECISION IND. CO., LTD., TAIWAN
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SABO, JAMES M.;REEL/FRAME:019109/0886
Effective date: 20070308
|Feb 6, 2012||REMI||Maintenance fee reminder mailed|
|Jun 24, 2012||LAPS||Lapse for failure to pay maintenance fees|
|Aug 14, 2012||FP||Expired due to failure to pay maintenance fee|
Effective date: 20120624